About: http://webisa.webdatacommons.org/8613324

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The headsets contain a Wi-Fi antenna, a GPS receiver and speakers that broadcast sounds such as songs or sirens, to get the cows moving.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com